제출 #869259

#제출 시각아이디문제언어결과실행 시간메모리
869259velislavgarkov커다란 상품 (IOI17_prize)C++14
0 / 100
46 ms344 KiB
#include "prize.h"
#include <iostream>
using namespace std;
vector <int> a;
int find_next(int l1, int r1) {
    int l, r, mid;
    l=l1; r=r1;
    while (l<r) {
        mid=(l+r)/2;
        a=ask(mid);
        if (a[0]>0) mid=r;
        else l=mid+1;
    }
    a=ask(l-1);
    if (a[0]+a[1]==0) return l-1;
    return find_next(l,r1);
}
int find_best(int n) {
    int ans=find_next(0,n-1);
    return ans;
}
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